[css-containment] Set spec to level 1 rather than 3 (w3c#828)

frivoal · tabatkins · commit 238cdbaddc43 · 2017-01-11T16:13:54.000-08:00
diff --git a/css-containment/Overview.bs b/css-containment/Overview.bs
@@ -1,7 +1,7 @@
-<h1>CSS Containment Module Level 3</h1>
+<h1>CSS Containment Module Level 1</h1>
 
 <pre class=metadata>
-Level: 3
+Level: 1
 Shortname: css-containment
 Status: ED
 Work Status: Exploring
